| Class | Description | |
|---|---|---|
 | DANodeElement | Contains information gathered about an OPC-DA node (branch or leaf in OPC-DA server's address space). |
| DANodeElementCollection | A collection of node elements (DANodeElement), keyed by their names. |
| DAPropertyElement | Contains information gathered about an OPC property. |
| DAPropertyElementCollection | A collection of property elements (DAPropertyElement), keyed by their names. |